Replying to Ar7 Vs. THall

Searched and found a thread but it was a 100lb kid asking. This past winter I rode the 2011/2012 T-Halls at a demo and loved them. What I'm wondering is if I could get away with the AR7 because they are a little cheaper. Is the T-Hall that much softer than the AR7? I'm just afraid that the ar7 will be really stiff in comparison to what I rode and loved for the playfulness. I'd be getting a 176 unless you think I should bump up to the 181 and I would be mounting them at the furthest forward recommended (i think it's just behind center).
Stats: 5'10, 140lbs, 55% rails 45% jumps, coming off a pair of Line Chronics, Skiing mostly in Pa.
Thanks